# John M Bergey — Patents explained on PatentBrief

John M Bergey has 1 landmark patent explained in plain English on PatentBrief.

- [Hamilton's Early Digital Watch with LED Display](https://patentbrief.org/patent/us/3672155/digital-watch-pulsar) — granted 1972
  Hamilton's 1972 patent for a digital watch that uses electronic circuits and light-emitting diodes (LEDs) to show time, instead of gears and hands, powered by a rechargeable battery.

**Full profile:** https://patentbrief.org/inventor/john-m-bergey

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._